Analysis of interatomic Contacts of Structural Units in PDB entry:
1I3R

Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
This page provides analyses of contacts formed by:

chains
helices
sheets
residues

For analysis of ligand-protein contacts, use:

LPC software

3D structure can be seen in additional window with STING software for 1I3R entry

There are 8 chains in PDB entry 1I3R (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ILE 1	GLU 182
B	GLY 1	ALA 216
C	ILE 1	GLU 182
D	GLY 1	ALA 216
E	ILE 1	GLU 182
F	GLY 1	ALA 216
G	ILE 1	GLU 182
H	GLY 1	ALA 216

There are 25 helices in PDB entry 1I3R. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	45	51	Right-handed 310
Helix 2	2	A	55	77	Right-handed alpha
Helix 3	3	B	45	48	Right-handed 310
Helix 4	4	B	77	79	Right-handed 310
Helix 5	5	B	80	89	Right-handed alpha
Helix 6	6	B	90	104	Right-handed alpha
Helix 7	7	B	104	113	Right-handed alpha
Helix 8	8	C	45	52	Right-handed 310
Helix 9	9	C	55	77	Right-handed alpha
Helix 10	10	D	77	79	Right-handed 310
Helix 11	11	D	80	89	Right-handed alpha
Helix 12	12	D	90	104	Right-handed alpha
Helix 13	13	D	104	113	Right-handed alpha
Helix 14	14	E	45	51	Right-handed 310
Helix 15	15	E	55	77	Right-handed alpha
Helix 16	16	F	77	79	Right-handed 310
Helix 17	17	F	80	89	Right-handed alpha
Helix 18	18	F	90	104	Right-handed alpha
Helix 19	19	F	104	113	Right-handed alpha
Helix 20	20	G	45	50	Right-handed 310
Helix 21	21	G	55	77	Right-handed alpha
Helix 22	22	H	77	79	Right-handed 310
Helix 23	23	H	80	88	Right-handed alpha
Helix 24	24	H	90	104	Right-handed alpha
Helix 25	25	H	104	113	Right-handed alpha

There are 29 sheets in PDB entry 1I3R. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, AA, AB, AC,

There are 8 strands in A sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	40	43	first strand
Strand 2	A	29	35	anti-parallel
Strand 3	A	19	26	anti-parallel
Strand 4	A	5	15	anti-parallel
Strand 5	B	33	44	anti-parallel
Strand 6	B	49	58	anti-parallel
Strand 7	B	61	67	anti-parallel
Strand 8	B	73	75	anti-parallel

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There are 4 strands in B sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	88	93	first strand
Strand 2	A	103	112	anti-parallel
Strand 3	A	145	153	anti-parallel
Strand 4	A	132	134	anti-parallel

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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	88	93	first strand
Strand 2	A	103	112	anti-parallel
Strand 3	A	145	153	anti-parallel
Strand 4	A	138	139	anti-parallel

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There are 4 strands in D sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	126	127	first strand
Strand 2	A	118	123	anti-parallel
Strand 3	A	160	166	anti-parallel
Strand 4	A	174	179	anti-parallel

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There are 4 strands in E sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	124	129	first strand
Strand 2	B	140	148	anti-parallel
Strand 3	B	181	188	anti-parallel
Strand 4	B	168	170	anti-parallel

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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	124	129	first strand
Strand 2	B	140	148	anti-parallel
Strand 3	B	181	188	anti-parallel
Strand 4	B	174	175	anti-parallel

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There are 4 strands in G sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	162	164	first strand
Strand 2	B	154	159	anti-parallel
Strand 3	B	196	202	anti-parallel
Strand 4	B	210	215	anti-parallel

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There are 8 strands in H sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	41	43	first strand
Strand 2	C	29	34	anti-parallel
Strand 3	C	19	26	anti-parallel
Strand 4	C	4	15	anti-parallel
Strand 5	D	33	44	anti-parallel
Strand 6	D	49	58	anti-parallel
Strand 7	D	61	67	anti-parallel
Strand 8	D	73	75	anti-parallel

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There are 4 strands in I sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	88	93	first strand
Strand 2	C	103	112	anti-parallel
Strand 3	C	145	153	anti-parallel
Strand 4	C	132	134	anti-parallel

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There are 4 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	88	93	first strand
Strand 2	C	103	112	anti-parallel
Strand 3	C	145	153	anti-parallel
Strand 4	C	138	139	anti-parallel

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There are 4 strands in K sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	126	127	first strand
Strand 2	C	118	123	anti-parallel
Strand 3	C	160	166	anti-parallel
Strand 4	C	174	179	anti-parallel

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There are 4 strands in L sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	124	130	first strand
Strand 2	D	140	148	anti-parallel
Strand 3	D	181	188	anti-parallel
Strand 4	D	168	170	anti-parallel

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There are 4 strands in M sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	124	130	first strand
Strand 2	D	140	148	anti-parallel
Strand 3	D	181	188	anti-parallel
Strand 4	D	174	175	anti-parallel

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There are 4 strands in N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	162	164	first strand
Strand 2	D	154	159	anti-parallel
Strand 3	D	196	202	anti-parallel
Strand 4	D	210	215	anti-parallel

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There are 8 strands in O sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	40	43	first strand
Strand 2	E	29	35	anti-parallel
Strand 3	E	19	26	anti-parallel
Strand 4	E	5	15	anti-parallel
Strand 5	F	33	44	anti-parallel
Strand 6	F	49	58	anti-parallel
Strand 7	F	61	67	anti-parallel
Strand 8	F	73	75	anti-parallel

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There are 4 strands in P sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	88	93	first strand
Strand 2	E	103	112	anti-parallel
Strand 3	E	145	153	anti-parallel
Strand 4	E	132	134	anti-parallel

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There are 4 strands in Q sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	88	93	first strand
Strand 2	E	103	112	anti-parallel
Strand 3	E	145	153	anti-parallel
Strand 4	E	138	139	anti-parallel

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There are 4 strands in R sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	126	128	first strand
Strand 2	E	118	123	anti-parallel
Strand 3	E	161	166	anti-parallel
Strand 4	E	174	178	anti-parallel

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There are 4 strands in S sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	124	130	first strand
Strand 2	F	140	148	anti-parallel
Strand 3	F	181	188	anti-parallel
Strand 4	F	168	170	anti-parallel

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There are 4 strands in T sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	124	130	first strand
Strand 2	F	140	148	anti-parallel
Strand 3	F	181	188	anti-parallel
Strand 4	F	174	175	anti-parallel

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There are 4 strands in U sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	162	163	first strand
Strand 2	F	154	159	anti-parallel
Strand 3	F	196	202	anti-parallel
Strand 4	F	210	215	anti-parallel

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There are 8 strands in V sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	41	43	first strand
Strand 2	G	29	35	anti-parallel
Strand 3	G	19	26	anti-parallel
Strand 4	G	5	15	anti-parallel
Strand 5	H	33	44	anti-parallel
Strand 6	H	49	58	anti-parallel
Strand 7	H	61	67	anti-parallel
Strand 8	H	73	75	anti-parallel

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There are 2 strands in W sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	52	53	first strand
Strand 2	H	3	4	parallel

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There are 4 strands in X sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	88	93	first strand
Strand 2	G	103	112	anti-parallel
Strand 3	G	145	153	anti-parallel
Strand 4	G	132	134	anti-parallel

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There are 4 strands in Y sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	88	93	first strand
Strand 2	G	103	112	anti-parallel
Strand 3	G	145	153	anti-parallel
Strand 4	G	138	139	anti-parallel

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There are 4 strands in Z sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	126	128	first strand
Strand 2	G	118	123	anti-parallel
Strand 3	G	161	166	anti-parallel
Strand 4	G	174	178	anti-parallel

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There are 4 strands in AA sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	124	130	first strand
Strand 2	H	139	148	anti-parallel
Strand 3	H	181	189	anti-parallel
Strand 4	H	168	170	anti-parallel

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There are 4 strands in AB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	124	130	first strand
Strand 2	H	139	148	anti-parallel
Strand 3	H	181	189	anti-parallel
Strand 4	H	174	175	anti-parallel

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There are 4 strands in AC sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	162	164	first strand
Strand 2	H	154	159	anti-parallel
Strand 3	H	196	202	anti-parallel
Strand 4	H	210	215	anti-parallel

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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il

Analysis of interatomic Contacts of Structural Units in PDB entry: 1I3R

Analysis of interatomic Contacts of Structural Units in PDB entry:
1I3R